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एक यादृच्छिक चर X का प्रायिकता बंटन नीचे...

एक यादृच्छिक चर X का प्रायिकता बंटन नीचे दिया गया हैं-
`{:(X,0,1,2,3,4,5,6,7),(P(X), 0,k, 2k, 2k, 3k, k^(2), 2k^(2), 7k^(2)+k):}`
ज्ञात कीजिये-
(i) k, (ii) `P(X ge 3)`
(iii) `P(X le 6)` , (iv) `P(0 lt x lt 3)`

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